On the origin of nova-like binary systems

Details On the origin of nova-like binary systems On the origin of nova-like binary systems

Apr 1975

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1975ap%26ss..33..325g&link_type=abstract

Astrophysics and Space Science, vol. 33, Apr. 1975, p. 325-332.

Astronomy and Astrophysics

Astrophysics

2

Binary Stars, Novae, Stellar Evolution, White Dwarf Stars, Astronomical Models, Energy Dissipation, Giant Stars, Main Sequence Stars, Stellar Envelopes, Stellar Rotation

Scientific paper

Nova-like binary systems are similar to W UMa-systems in their basic physical characteristics. Outwardly such systems are different nova-like systems contain a white dwarf as a component, while both components of a W UMa-system are near the Main Sequence. A hypothesis is proposed, seeking the origin of contact W UMa-type systems in a fission of rapidly-rotating helium isothermal core of an evolved giant star. The contraction of the more massive component leads to the formation of a white dwarf and, consequently, to a transformation of a W UMa-type system into a nova-like system.

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